Research Square (Research Square),
Год журнала:
2023,
Номер
unknown
Опубликована: Май 22, 2023
Abstract
Visible
light
driven
synthesis
of
substituted
benzo[
b
]thiophenes
from
phenylethenethiol
under
an
air
atmosphere
at
room
temperature
is
reported,
using
eosin
Y
as
organophotoredox
catalyst
by
intramolecular
C−S
bond
formation.
This
process
accepts
a
wide
range
functional
groups
tolerance
and
generates
highly
environmentally
benign
conditions
via
transition-metal-free
organic
photoredox
catalysis.
Results in Chemistry,
Год журнала:
2023,
Номер
7, С. 101249 - 101249
Опубликована: Дек. 8, 2023
A
visible
light-induced,
photoredox
catalyzed,
eco-friendly
one
pot
method
for
the
synthesis
of
2,4-disubsitituted
quinoline
has
been
proposed.
This
novel
strategy
utilizes
light
to
produce
2,4-disubstituted
through
tandem
reactions
involving
formation
C-N
and
C-C
bonds
with
high
yield
product
under
relatively
mild
reaction
conditions.
synthetic
protocol
many
important
benefits,
including
a
cost-effective
catalyst,
short
time,
excellent
atom
economy,
simple
work-up
an
extensive
substrate
scope.
Organic Letters,
Год журнала:
2024,
Номер
26(7), С. 1416 - 1420
Опубликована: Фев. 8, 2024
Despite
the
notable
advancements
made
over
past
decade
in
achieving
carbon–carbon
bonds
by
transition-metal-catalyzed
cross-coupling
processes,
metal-free
reactions
for
hydroacylation
of
aromatic
alkynes
via
C(sp3)–H
functionalization
are
still
rare
and
highly
desired.
Here
we
report
a
reliable
approach
synthesis
α,β-unsaturated
ketones
(chalcones)
using
MeCN:H2O
as
green
solvent,
Eosin
Y
organic
photocatalyst,
ambient
air
oxidant.
More
significantly,
this
strategy
can
effectively
transform
variety
methyl
arenes
into
desired
product.
With
high
atom
efficiency,
use
solvents,
nature,
environmental
friendliness,
visible
light
renewable
energy
source,
method
is
compatible
with
biologically
active
molecules.
Abstract
Owing
to
its
possible
advantages
for
the
environment
and
economy,
photoredox
catalysis
of
organic
processes
fueled
by
iron
has
garnered
a
lot
interest
recently.
The
potential
photo‐induced
single‐electron
transfer
(SET)
events
occurring
outside
sphere
is
now
well
acknowledged.
Currently,
focus
shifted
newly
discovered
photoactivation
method
that
based
on
an
inner‐sphere
mode
reactivity
caused
population
visible‐light‐induced
homolysis
(VLIH)
states.
VLIH
activation,
in
contrast
photoredox,
specific
complexes,
offers
distinct
profiles,
does
not
require
redox
potentials
coincide.
These
attractive
properties
have
prompted
development
strategies
use
this
blueprint
manufacture
highly
reactive
open‐shell
species
mild
environments.
purpose
contribution
promote
novel
synthetic
techniques
sustainable
chemical
transformations
offer
educational
instrument
understanding
evolving
idea.
Abstract
Visible
light
photocatalysis
has
several
applications
as
a
method
of
chemical
transformation,
with
wide‐ranging
effects
on
the
production
energy,
preservation
environment,
development
new
drugs
and
human
health.
The
light‐induced
sensitization
cofactors
for
photodynamic
therapy
in
treatment
cancer
is
remarkable
application
an
influence
use
this
photosensitization
strategy
medicine
sparked
interest
other
photochemical
techniques,
such
photoredox
catalysis,
that
could
have
impact
biological
research.
discovery
useful
synthetic
transformations
during
past
ten
years
made
light‐mediated
catalysis
highly
used
synthesis.
This
review
will
highlight
recent
advances
visible‐light
through
its
anticancer
activity.
Abstract
Chemistry
professionals
from
all
kinds
of
fields
and
disciplines
in
the
academic
commercial
sectors
have
recently
shown
a
great
deal
interest
continuous‐flow
chemistry.
Flow
methods
are
used
nowadays
for
rapid
optimization
assessment,
as
well
production
scale‐up,
reaction
discovery,
methodology.
Photochemical
processes
currently
receiving
lot
attention
scientific
community,
application
flow
these
approaches
has
advantages
chemistry
its
importance
modern
industry
worldwide.
This
study
illustrates
most
recent
advancements
benefits
continuous
photochemical
reactions
relation
to
synthesis
active
pharmaceutical
compounds
recommended
frameworks.
Croatica Chemica Acta,
Год журнала:
2024,
Номер
97(1), С. 43 - 48
Опубликована: Янв. 1, 2024
Visible
light-driven
single-electron
transfer-based
direct
cyanation
of
benzylic
C-H
bond
with
non-toxic
N-Cyano-N-phenyl-ptoluenesulfonamide
(NCTS)
has
been
proposed
using
4CzIPN,
a
widely
used
and
affordable
substitute
for
metal
catalysts.The
aforementioned
method
offers
broad
functional
group
tolerance,
extensive
substrate
scope,
excellent
yields,
mild
reaction
conditions.This
green
sustainable
photocatalytic
hydrogen
atom
transfer
can
be
applicable
the
diversified
functionalization
variety
native
bonds.
